When a component is enabled, it is able to be started. Users may choose to disable
components when they are part of a dataflow that is still being assembled, for example.
Typically, if a component is not intended to be run, the component is disabled, rather than
being left in the Stopped state. This helps to distinguish between components that are
intentionally not running and those that may have been stopped temporarily (for instance, to
change the component's configuration) and inadvertently were never restarted.

When it is desirable to re-enable a component, it can be enabled by selecting the
component and clicking the Enable button ( ) in the Operate Palette. This is available only when the selected
component or components are disabled. Alternatively, a component can be enabled by checking
the checkbox next to the "Enabled" option in the Settings tab of the Processor
configuration dialog or the configuration dialog for a Port.

Once enabled, the component's status indicator will change to either Invalid ( ) or Stopped ( ), depending on whether or not the component is valid.

A component is then disabled by selecting the component and clicking the Disable button
( ) in the Operate Palette, or by clearing the checkbox next to the
"Enabled" option in the Settings tab of the Processor configuration dialog or the
configuration dialog for a Port.